Sharing Electrode Placement in Display Panel Pixels
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Solution Overview
Problem
Existing display panels face challenges in improving chromatic polarization at wide viewing angles due to the placement of sharing electrodes, which reduces the opening ratio and affects image quality.
Innovation Solution
A display panel design where the sharing electrode is located in a non-opening region, with a fixed voltage, and connected to both the sub-pixel and main-pixel regions through thin film transistors, allowing independent voltage control and reducing voltage fluctuations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the sharing electrode is located in the opening region to control voltage and improve chromatic polarization, then the chromatic polarization of wide viewing angles is improved, but the opening ratio is reduced
Solution Approach 1:
The sharing electrode is relocated from the opening region (2D plane within the pixel) to the non-opening region (edge area surrounding the pixel), effectively moving the electrode to a different spatial dimension. This allows the electrode to perform its voltage control function while no longer occupying the light-transmitting area, thus resolving the contradiction between chromatic polarization improvement and opening ratio maintenance.
2Ease of operation
If the sharing electrode is placed in the opening region to share charge between sub-pixel and main-pixel regions, then the brightness control is improved, but the image quality is reduced due to lower opening ratio
Solution Approach 1:
The electrode structure is segmented into two distinct parts: the common electrode portion located in the opening region for light transmission, and the sharing electrode located in the non-opening region for charge sharing. This segmentation allows each component to perform its specific function without compromising the other, maintaining both brightness control capability and image quality.
Data Source
AI summary
The present disclosure provides a display panel and an electronic device. The display panel includes a plurality of pixels, and the pixels include a main-pixel region and a sub-pixel region. The main-pixel region includes a common electrode portion including a sharing electrode, and a voltage of the sharing electrode is a fixed value. The sub-pixel region comprises a sub-driving thin film transistor and a sharing thin film transistor, wherein a drain of the sharing thin film transistor is connected to the sharing electrode, and a source of the sharing thin film transistor is connected to a drain of the sub-driving thin film transistor.